I shot this on Litho film years ago. Doing something like this digitally is a piece of cake nowadays, of course. The film I used wasn't a true lithography film, as that stuff was considerably more expensive. This film produced some grays, but when printed with a #5 filter, they all blocked up into blacks. The film was rated at ASA 25, which limited shooting environments considerably, but so did the fact that hard shadows and lots of contrast were a necessity. I've still got an old roll of it hanging around in my fridge somewhere.